html {   /*设置边框和内边距后，不会改变元素原来的大小。*/
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -o-box-sizing: border-box;
}
*, *:before, *:after {
    box-sizing: inherit;
}
head,body,*{
    margin: 0;
    padding: 0;
}

.Outermost{ /*最外层容器 */
    position: absolute;
    left: 50%;
    height: 3000px;
    width: 1100px;
    margin-left: -550px;
    border: 1px solid red;
}
.img-static{ /* 静止顶端图片 */
    width: 200px;
    height: 120px;
    margin-left: 350px;
}

.right{ /* 右边的固定的div */
    position: absolute;
    width: 550px;
    height: 2500px;
    margin-left: 550px;
    margin-top: -250px;
    border: 1px solid red;
}
#sco{ /* 滚动的div */
    float: left;
    width: 120px;
    height: 120px;
    margin-left: 430px;
    border: 1px solid blue;
}
#img2{ /* 动态div里面的图片样式 */
    width: 100%;
    height: 100%;
    filter:alpha(Opacity=60);
    -moz-opacity:0.6;
    opacity: 0.6;
}